¡@
2014/10/15 ¤U¤È 10:07:24
iphone Programming Glossary: don'tHow to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m.. using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone this is the case then Apple is running an SMS server that sends messages on behalf of devices that don't have a cellular modem. Limitations to this class Keep in mind that this won't work on phones without..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen size every time you have to draw something like many..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized.. as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments and suggestions..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports .ipa with .zip extract it then we can get a Payload Folder which contain app. In this case we don't need .dSYM file. Note This can only work if the app binary does not have symbols stripped. By default..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation I have an app where I would like to support device rotation in certain views but other don't particularly make sense in Landscape mode so as I swapping the views out I would like to force the rotation..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself as an observer the Notification Center will continue to try and send notification objects..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key is the code in SecondView.m Almost nothing in there apart from the auto generated code which I don't paste here . @implementation SecondView @synthesize string In my SecondView.xib the UILabel is linked..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString url NSString stringWithString..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview in your response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there.. that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 instructions have changed I can probably simplify this by changing the script in future but don't want to risk it now copy headers section now respects the build setting for the location of the public..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which does something..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from.. page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features.. image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone viewWillDisappear BOOL animated shakeView resignFirstResponder super viewWillDisappear animated Don't forget that if you have other views that become first responder from user actions like a search bar..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller NSString base64String imageData base64EncodedString Add the encoded string to the emailBody string Don't forget the b tags are required the p tags are optional emailBody appendString NSString stringWithFormat..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how context CGColorSpaceRelease colorSpace img release return UIImage imageWithCGImage imageMasked Don't forget that you'll need to get the QuartzCore framework in there for this to work. share improve this..
How can i change the color of pagination dots of UIPageControl? http://stackoverflow.com/questions/2942636/how-can-i-change-the-color-of-pagination-dots-of-uipagecontrol with it. Future improvements Resize the dots to fit the current bounds if there are too many. Don't redraw the entire view in drawRect Example use CGRect f CGRectMake 0 0 320 20 PageControl pageControl..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 state. No reason for exit. Edit As this keeps popping up again iOS Human Interface Guidelines says Don't Quit Programmatically . And we have seen many reports of apps that had calls to exit in them in the..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel with an NSAttributedString much lighter and simpler than 2 UILabels. iOS 3.2 and above Example. Don't forget to add QuartzCore framework needed for CALayers and CoreText needed for the attributed string...
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events defaultTimeZone alarm.repeatInterval 0 alarm.soundName @ alarmsound.caf alarm.alertBody @ Don't Panic This is just a Push Notification Test. app scheduleLocalNotification alarm and the registration..
Lock-down iPhone/iPod/iPad so it can only run one app http://stackoverflow.com/questions/5011774/lock-down-iphone-ipod-ipad-so-it-can-only-run-one-app URL below if you visit this URL on your iOS device Safari will prompt you to install the profile. Don't forget to reboot your device http ipadhire.co.nz lockdown.mobileconfig EDIT EDIT brainray posted below..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your.. the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the BookWarehouse..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller professional to have the fields locked rather than display an alert or something saying Please Don't Edit the Message so its not a massive problem if the fields can't be locked but any help would be greatly..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk share improve this question METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m to the project found here https github.com tonymillion Reachability.. startNotifier METHOD 2 Do it yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the project you can get those here 3 Add @class Reachability to..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone be able to send SMS via MFMessageComposeViewController. If this is the case then Apple is running an SMS server that sends messages on behalf of devices that don't have a cellular modem. Limitations to this class Keep in mind that this won't work on phones without iOS 4 and it won't work on the iPod touch or the iPad except..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size won't work seamlessly between versions as it happened when we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen size every time you have to draw something like many answers say. Does that happen with the iPad iphone ios iphone..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices if the application is not optimised for the iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments and suggestions have been incorporated.. for the iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments and suggestions have been incorporated in this post. Thanks to everybody...
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports IPA if we use IPA for symbolicating just rename the extention .ipa with .zip extract it then we can get a Payload Folder which contain app. In this case we don't need .dSYM file. Note This can only work if the app binary does not have symbols stripped. By default release builds stripped the symbols. We can change it in project..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to detect this iphone ios accelerometer shake..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation there a documented way to set the iPhone orientation I have an app where I would like to support device rotation in certain views but other don't particularly make sense in Landscape mode so as I swapping the views out I would like to force the rotation to be set to portrait. There is an undocumented property..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c NSNotificationCenter in Objective C iphone objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself as an observer the Notification Center will continue to try and send notification objects to the deallocated object. NSNotificationCenter defaultCenter..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key @property nonatomic retain IBOutlet UILabel string @end Here is the code in SecondView.m Almost nothing in there apart from the auto generated code which I don't paste here . @implementation SecondView @synthesize string In my SecondView.xib the UILabel is linked with the File's Owner. the class of the File's Owner is SecondView..
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application can I send mail from an iPhone application I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString url NSString stringWithString @ mailto foo@example.com cc bar@example.com subject Greetings..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview simple to read. The sublayerTransform you refer to in your response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within the one layer that I'm.. The sublayerTransform you refer to in your response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within the one layer that I'm rotating. share improve..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 using Apple's workaround to the bugs in lipo . NOTE the install instructions have changed I can probably simplify this by changing the script in future but don't want to risk it now copy headers section now respects the build setting for the location of the public headers courtesy of Frederik Wallner Added explicit setting..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which does something like I want. Thx iphone export uiimage avfoundation share..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real time.. using memory beware of leaving contexts open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features Getting Links inside a PDF and here and here Understanding.. approximatively the same approach except I cache the generated image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released automatically when memory warnings are issued. Whenever..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone becomeFirstResponder super viewWillAppear animated void viewWillDisappear BOOL animated shakeView resignFirstResponder super viewWillDisappear animated Don't forget that if you have other views that become first responder from user actions like a search bar or text entry field you'll also need to restore the shaking..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller string representation of the data using NSData Base64 NSString base64String imageData base64EncodedString Add the encoded string to the emailBody string Don't forget the b tags are required the p tags are optional emailBody appendString NSString stringWithFormat @ p b img src 'data image png base64 @' b p base64String..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone not an option to switch to another type of interface e.g. REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server between the iPhone and the web service..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how
How can i change the color of pagination dots of UIPageControl? http://stackoverflow.com/questions/2942636/how-can-i-change-the-color-of-pagination-dots-of-uipagecontrol oven but seems to work. Let me know if you run into any problems with it. Future improvements Resize the dots to fit the current bounds if there are too many. Don't redraw the entire view in drawRect Example use CGRect f CGRectMake 0 0 320 20 PageControl pageControl PageControl alloc initWithFrame f autorelease pageControl.numberOfPages..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 is either by resuming or by starting and loading the old state. No reason for exit. Edit As this keeps popping up again iOS Human Interface Guidelines says Don't Quit Programmatically . And we have seen many reports of apps that had calls to exit in them in the past. Exiting instead of suspending by setting the appropriate..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel it is enough Old Answer for iOS5 and below Use a CATextLayer with an NSAttributedString much lighter and simpler than 2 UILabels. iOS 3.2 and above Example. Don't forget to add QuartzCore framework needed for CALayers and CoreText needed for the attributed string. #import QuartzCore QuartzCore.h #import CoreText CoreText.h..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events if alarm alarm.fireDate NSDate date alarm.timeZone NSTimeZone defaultTimeZone alarm.repeatInterval 0 alarm.soundName @ alarmsound.caf alarm.alertBody @ Don't Panic This is just a Push Notification Test. app scheduleLocalNotification alarm and the registration is done in void applicationDidEnterBackground UIApplication..
Lock-down iPhone/iPod/iPad so it can only run one app http://stackoverflow.com/questions/5011774/lock-down-iphone-ipod-ipad-so-it-can-only-run-one-app You can download a copy of a mobileconfig file from the URL below if you visit this URL on your iOS device Safari will prompt you to install the profile. Don't forget to reboot your device http ipadhire.co.nz lockdown.mobileconfig EDIT EDIT brainray posted below and pointed out that there's a new feature in iOS 6 called..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request variable that you can process. IMPORTANT Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection connection didReceiveResponse NSURLResponse response..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers singletons This includes your application delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your app delegate and reference the viewcontroller instances in.. brokering data between a model object BookWarehouse and the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the BookWarehouse so I'm going to look it up using the BookWarehouse..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller in the previous view. Basically I think it would just be more professional to have the fields locked rather than display an alert or something saying Please Don't Edit the Message so its not a massive problem if the fields can't be locked but any help would be greatly appreciated. iphone ios email locking mfmailcomposeviewcontroll..
How to check for an active Internet Connection on iPhone SDK? http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-iphone-sdk METHOD 1 Use a simple ARC and GCD compatible class to do it 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Tony Million's version of Reachability.h and Reachability.m to the project found.. yourself the old way using Apple's outdated Reachability class 1 Add SystemConfiguration framework to the project but don't worry about including it anywhere 2 Add Apple's version of Reachability.h and Reachability.m to the project you can get..
How to programmatically send SMS on the iPhone? http://stackoverflow.com/questions/10848/how-to-programmatically-send-sms-on-the-iphone If this is the case then Apple is running an SMS server that sends messages on behalf of devices that don't have a cellular modem. Limitations to this class Keep in mind that this won't work on phones without iOS 4 and it won't..
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate] http://stackoverflow.com/questions/12396545/ios-6-apps-how-to-deal-with-iphone-5-screen-size as it happened when we got the Retina . And will we have to design two storyboards just like for the iPad I personally don't think Apple will require you to check the screen size every time you have to draw something like many answers say. Does..
How to detect iPhone 5 (widescreen devices)? http://stackoverflow.com/questions/12446990/how-to-detect-iphone-5-widescreen-devices the iPhone 5 screen missing the Default 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments.. 568h@2x.png image as the screen size will still be 320x480 in such a case. I don't think this may be an issue as I don't see why we would want to detect an iPhone 5 in a non optimized app. Final note Comments and suggestions have been incorporated..
Symbolicating iPhone App Crash Reports http://stackoverflow.com/questions/1460892/symbolicating-iphone-app-crash-reports rename the extention .ipa with .zip extract it then we can get a Payload Folder which contain app. In this case we don't need .dSYM file. Note This can only work if the app binary does not have symbols stripped. By default release builds stripped..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone do I detect when someone shakes an iPhone I want to react when somebody shakes the iPhone. I don't particularly care how they shake it just that it was waved vigorously about for a split second. Does anyone know how to..
Is there a documented way to set the iPhone orientation? http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation to set the iPhone orientation I have an app where I would like to support device rotation in certain views but other don't particularly make sense in Landscape mode so as I swapping the views out I would like to force the rotation to be set to..
Send and receive messages through NSNotificationCenter in Objective-C? [closed] http://stackoverflow.com/questions/2191594/send-and-receive-messages-through-nsnotificationcenter-in-objective-c objective c ios nsnotificationcenter share improve this question @implementation TestClass void dealloc If you don't remove yourself as an observer the Notification Center will continue to try and send notification objects to the deallocated..
This class is not key value coding-compliant for the key http://stackoverflow.com/questions/3088059/this-class-is-not-key-value-coding-compliant-for-the-key string @end Here is the code in SecondView.m Almost nothing in there apart from the auto generated code which I don't paste here . @implementation SecondView @synthesize string In my SecondView.xib the UILabel is linked with the File's Owner...
How can I send mail from an iPhone application http://stackoverflow.com/questions/310946/how-can-i-send-mail-from-an-iphone-application I want to send an email from my iPhone application. I have heard that the iOS SDK doesn't have an email API. I don't want to use the following code because it will exit my application NSString url NSString stringWithString @ mailto foo@example.com..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview you refer to in your response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers.. response is a transform that is applied to the sublayers of your UIView's CALayer . If you don't have any sublayers don't worry about it. I use the sublayerTransform in my example simply because there are two CALayers contained within the one..
Build fat static library (device + simulator) using Xcode and SDK 4+ http://stackoverflow.com/questions/3520977/build-fat-static-library-device-simulator-using-xcode-and-sdk-4 in lipo . NOTE the install instructions have changed I can probably simplify this by changing the script in future but don't want to risk it now copy headers section now respects the build setting for the location of the public headers courtesy..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which does something like I want. Thx ..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits.. open though Recycle page objects by doing pointer swaps or destroy unused views Close any open Contexts as soon as you don't need them on receiving memory warnings release and reload the DocRef and any page Caches Other PDF Features Getting Links.. I cache the generated image on the disk and always generate two to three images in advance in a separate thread. I don't overlay with a UIImage but instead draw the image in the layer when zooming is 1. Those tiles will be released automatically..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone animated void viewWillDisappear BOOL animated shakeView resignFirstResponder super viewWillDisappear animated Don't forget that if you have other views that become first responder from user actions like a search bar or text entry field..
How to add a UIImage in MailComposer Sheet of MFMailComposeViewController http://stackoverflow.com/questions/1527351/how-to-add-a-uiimage-in-mailcomposer-sheet-of-mfmailcomposeviewcontroller using NSData Base64 NSString base64String imageData base64EncodedString Add the encoded string to the emailBody string Don't forget the b tags are required the p tags are optional emailBody appendString NSString stringWithFormat @ p b img src 'data..
How to use the first character as a section name http://stackoverflow.com/questions/1741093/how-to-use-the-first-character-as-a-section-name sectionInfo fetchedResultsController sections objectAtIndex section return sectionInfo numberOfObjects Don't implement this since each name is its own section NSString tableView UITableView tableView titleForHeaderInSection NSInteger..
How to access SOAP services from iPhone http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone of interface e.g. REST based API . Gero iphone ios web services soap wsdl share improve this question One word Don't. OK obviously that isn't a real answer. But still SOAP should be avoided at all costs. Is it possible to add a proxy server..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how
How can i change the color of pagination dots of UIPageControl? http://stackoverflow.com/questions/2942636/how-can-i-change-the-color-of-pagination-dots-of-uipagecontrol run into any problems with it. Future improvements Resize the dots to fit the current bounds if there are too many. Don't redraw the entire view in drawRect Example use CGRect f CGRectMake 0 0 320 20 PageControl pageControl PageControl alloc..
http://stackoverflow.com/questions/3097244/exit-application-in-ios-4-0 and loading the old state. No reason for exit. Edit As this keeps popping up again iOS Human Interface Guidelines says Don't Quit Programmatically . And we have seen many reports of apps that had calls to exit in them in the past. Exiting instead..
How Do I write a Timer in Objective-C? http://stackoverflow.com/questions/3519562/how-do-i-write-a-timer-in-objective-c It takes more than 1 millisecond. iphone objective c timer nsdate nstimer share improve this question Don't use NSTimer that way. NSTimer is normally used to fire a selector at some time interval. It isn't high precision and isn't..
Bold & Non-Bold Text In A Single UILabel? http://stackoverflow.com/questions/3586871/bold-non-bold-text-in-a-single-uilabel Use a CATextLayer with an NSAttributedString much lighter and simpler than 2 UILabels. iOS 3.2 and above Example. Don't forget to add QuartzCore framework needed for CALayers and CoreText needed for the attributed string. #import QuartzCore..
Handling applicationDidBecomeActive http://stackoverflow.com/questions/3639859/handling-applicationdidbecomeactive addObserver self selector @selector someMethod name UIApplicationDidBecomeActiveNotification object nil Don't forget to clean up after yourself In dealloc remember to remove yourself as the observer NSNotificationCenter defaultCenter..
iPhone - Backgrounding to poll for events http://stackoverflow.com/questions/4656214/iphone-backgrounding-to-poll-for-events alarm.timeZone NSTimeZone defaultTimeZone alarm.repeatInterval 0 alarm.soundName @ alarmsound.caf alarm.alertBody @ Don't Panic This is just a Push Notification Test. app scheduleLocalNotification alarm and the registration is done in void applicationDidEnterBackground..
Lock-down iPhone/iPod/iPad so it can only run one app http://stackoverflow.com/questions/5011774/lock-down-iphone-ipod-ipad-so-it-can-only-run-one-app file from the URL below if you visit this URL on your iOS device Safari will prompt you to install the profile. Don't forget to reboot your device http ipadhire.co.nz lockdown.mobileconfig EDIT EDIT brainray posted below and pointed out that..
NSString retainCount is 2147483647 [duplicate] http://stackoverflow.com/questions/5483357/nsstring-retaincount-is-2147483647 count 1 2147483647 iphone objective c xcode share improve this question It is 2147483647 because you looked. Don't look and it will be the value you expect. Seriously. Don't call retainCount . Not ever. It is useless. Why it is such a.. this question It is 2147483647 because you looked. Don't look and it will be the value you expect. Seriously. Don't call retainCount . Not ever. It is useless. Why it is such a ridiculous number is because of an implementation detail. @..
iOS: how to perform an HTTP POST request? http://stackoverflow.com/questions/5537297/ios-how-to-perform-an-http-post-request Remember to kick off the synchronous request in a separate thread to avoid blocking the UI. Asynchronously void start Don't forget to set your NSURLConnection's delegate to handle the connection as follows void connection NSURLConnection connection..
What's the best way to communicate between view controllers? http://stackoverflow.com/questions/569940/whats-the-best-way-to-communicate-between-view-controllers delegate Direct dependencies make your code less reusable And more difficult to debug test Ok. I'm down with that. Don't blindly toss all your methods that will be used for communicating between the viewcontroller into your app delegate and.. BookWarehouse and the GUI view objects. In other words BookPickerViewController DEPENDS on the BookWarehouse object. Don't do this @implementation BookPickerViewController void doSomething I need to do something with the BookWarehouse so I'm going..
iPhone SDK: what is the difference between loadView and viewDidLoad? http://stackoverflow.com/questions/573958/iphone-sdk-what-is-the-difference-between-loadview-and-viewdidload here because I've done it I've found that often when I add init code to loadView I end up with an infinite stack trace Don't read self.view in loadView. Only set it don't get it. The self.view property accessor calls loadView if the view isn't currently..
Locking the Fields in MFMailComposeViewController http://stackoverflow.com/questions/6284599/locking-the-fields-in-mfmailcomposeviewcontroller it would just be more professional to have the fields locked rather than display an alert or something saying Please Don't Edit the Message so its not a massive problem if the fields can't be locked but any help would be greatly appreciated. ..
Save An Image To Application Documents Folder From UIView On IOS http://stackoverflow.com/questions/6821517/save-an-image-to-application-documents-folder-from-uiview-on-ios the stack. Any help is greatly appreciated iphone uiimageview save share improve this question It's all good man. Don't harm yourself or others. You probably don't want to store these images in Core Data since that can impact performance if..
Preserve HTML font-size when iPhone orientation changes from portrait to landscape http://stackoverflow.com/questions/2710764/preserve-html-font-size-when-iphone-orientation-changes-from-portrait-to-landsca id home class active a href test.html TEST a div li ul ...My question is how can I format the hyperlinks so that they DON'T change size when viewed on an iPhone and the accellerometer switches from portrait landscape Right now I have the hyperlink..
calling [myString release] does NOT decrement [myString retainCount] http://stackoverflow.com/questions/3213647/calling-mystring-release-does-not-decrement-mystring-retaincount same result running in simulator or on the device. iphone objective c ipad nsstring share improve this question DON'T RELY ON RETAINCOUNT To humans it's not an accurate measure of object ownership. You don't know what's calling retain and..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework you probably want to do this once when the app loads and call the complimentary release function once when it quits. DON'T do it lots of times it is expensive. let's say log2n 8 so n 2^8 256 samples or 'harmonics' or 'terms' if we pre calculate..
Where are the best explanations of memory management for iPhone? [closed] http://stackoverflow.com/questions/710288/where-are-the-best-explanations-of-memory-management-for-iphone this question A quick explaination Anything you alloc new retain or copy you must also release . Also anything you DON'T alloc or copy you should retain if you plan on holding on to it beyond the current message loop or you risk it being autoreleased..
done button only for numberpad keyboard http://stackoverflow.com/questions/8239273/done-button-only-for-numberpad-keyboard These are just a couple of the myriad of problems that come with glomming your UI into private view hierarchies. DON'T DO THIS. Here are 2 alternatives instead Use the inputAccessoryView property on every UIResponder and thus every UIView..
Recovery deleted files from Xcode http://stackoverflow.com/questions/8874174/recovery-deleted-files-from-xcode to recover these images there is no sign of images in trash iphone ios xcode ipad sdk share improve this question DON'T PANIC AND BE HOPEFUL check out your last Device or Simulator build on the Product folder select your file and click reveal..
|